Saturday, December 09, 2006

More about vaccination

http://www.youtube.com/watch?v=hPA-Nc07YGg

(Abstract from Die Welt). An international team led by the University of Göttingen, demonstrated that people that had suffered Tuberculosis, blood poisoning, pneumonia or bacterial infections (Staphylococus aureus), rarely contracts melanoma. The body builds an immune answer that impedes the development of the tumor, explains the private professor Bernd Krone, virologist of the University of Göttingen. Of another side, British investigators proved that children that have regular encounters with other children - in the first months of their lives - rarely get sick of acute lymphoblastic leukemia. Nevertheless, the investigators prevent against an exaggerated optimism, in the sense of thinking that frequent infections will invariably diminish the risk of tumors "This is a hypothesis to which it lacks even more sustenance", said the investigator in cancer Thomas Wölfelof University of Mainz. Already in the XIX century, some doctors suspected that personal contact, impeded the development of the cancer, said John M. Grange, expert in infectious illnesses of the University College of London, as "European Journal of Cancer", reports. The British physician Campbell De Morganobserved in 1874 that some tumors shrinked if the patient made sick of TBC. Soon after, American WilliamColey began to treat people with vicious (pink pest) tumors, with bacterias, with apparent success. With the emergency of the radiation and chemotherapy the ideas of Coley were in the forgetfulness, Grange writes.

Alone in recent times the interest in vaccinations and immune anticarcinogenic therapy, has resuscitated. A reason for it, is the hypothesis of the hygiene. The investigators assume that the immune system usually, needs confrontation with different environmental noxas to develop enough immunity. One observes that children that grow in extremely clean atmospheres, are but exposed. The acute lymphatic leukemia, the cancer but frequent in children, appears mainly in prosperous cities, Grange says. A extract from a extensive study of United Kingdom Childhood Cancer Study, with 10.000 participants, gave as a result that children coming from poor atmospheres and who contacted personally with other at early age rarely made sick of leukemia. It was assumed that early contact with patógens strengthened the immune system. In the case of the cancer of skin, doctors of the University of Göttingen found that all those that had severe infections or, continued walking with high fevers acquired protection. With the emergency of antibiotics, after II World War cup, these illnesses became in strange. The doctors made another discovery: the infantile vaccination against Measles and TBC, protects against the development of malignant melanoma, reducing in 50% the risk of cancer of the skin. Both vaccines, are not common now for the high risk of colateral effects. Of another side the Measles is considered extinct.